Deciphering Property Development around High-Speed Railway Stations through Land Value Capture: Case Studies in Shenzhen and Hong Kong

Property development around transit stations has been viewed by many governments as a considerable way of financing public transportation. However, despite mounting evidence of the positive relationship between transport investment and proximate land value, the stakeholder relationship in enabling complex property–transit development has received relatively scarce attention. In this study, we analyze the railway financing strategies in two cities (Shenzhen and Hong Kong) connected by the first cross-border high-speed rail (HSR) network in China. Using a holistic power approach, this study presents power direction, power strength, and power mechanism as the critical factors for each case. The results reveal that different stakeholder relations arising from different social and institutional contexts have led to varying land value capture practices. The findings of this study contribute to sustainable railway financing in three phases: First, it unravels the relationship between railway financing and property development under the context of an intercity railway program, with the intervention of state power. Second, it sorts out critical elements in the implementation of the land value capture mechanism, especially institutional factors such as the role of the transit agency. Third, it directs a flexible development of the land value capture theory to cope with foreseeable problems such as land resource scarcity, institutional complexity, and interest divergence.

Numerical and experimental analysis for simulating fuel reactor in chemical looping combustor system

The greenhouse problem has a significant effect on our communities such as, health and climate. Carbon dioxide is one of the main gases that cause global warming. Therefore, CO2 capture techniques have been the focus of attention these days. The chemical looping combustion technique adopted the air reactor and fuel reactor to recycle heat energy. This study presents a numerical and experimental investigation on a fuel reactor in chemical looping combustor (CLC) system. The present numerical model is introduced by the kinetic theory of granular flow and coupled with gas–solid flow with chemical reactions to simulate the combustion of solids in the CLC. The k–ε turbulent model was used to model the gas phase and the particle phase. The developed model simplify the prediction of flow patterns, particle velocities, gas velocities, and composition profiles of gas products and the distribution of heterogeneous reaction rates under the same operating conditions. The predicted and experimental results were compared according to the basis of determination coefficient (R2). In addition the results showed that there is a good agreement between the predicted and experimental data. The value of (R2) for CO, CO2 and CH4 was 0.959, 0.925 and 0.969 respectively. This shows that the present model is a promising simulation for solid particle combustion and gives the power direction for the design and optimization of the CLC systems.

An improved active power direction method for harmonic source identification

Due to significant increment in harmonic polluting loads in the power system, there has been enhanced attention of the power professionals towards the estimation of harmonic signals and identification of their sources in the system. Harmonic source identification is an important step for proper accountability, monitoring, and mitigation of any harmonic pollution. The active power direction (APD) method is one of the conventional approaches for harmonic source detection in the distribution system. Although it is simple and easy to implement, serious concerns were raised on its validity, as the direction of active power is dependent on the phase angle. In this paper, APD is augmented with distorting and non-distorting power to improve its accuracy and reliability for harmonic source identification. The distorting and non-distorting portions of the loads are separated, and the distorting and non-distorting powers are calculated at each node. These calculated powers, in addition to the direction of the harmonic active power, are used to formulate the logic required for deciding the severity index at each node. The validity of the method has been tested on a single-phase network, an IEEE-5 bus system, and an IEEE-14 bus system. It has been observed that the proposed method provides good results than conventional APD with the same measurement requirement.

Paulownia as power culture

The interest for production of energy crops, which biomass may be used as renewable fuel have been grown in 70 years of last century after dramatically rising price of fossil fuels. The energy crops growing have been also stimulated by environmental factors and approval some International political initiatives, like White Paper for a Community Strategy and Action Plan and The Kyoto protocol. After some decreasing, the area of energy crops in EU and North America countries are stabilized. In Ukraine in the last few years there is a gradual increase of part of energy consumption of biopropellant from 1.3 % in 2008 to 3.4 % in 2018 in the general energy consumption of country. As the most widespread energy cultures biomass of that is used as a biopropellant come forward willow, saccharine sorghum and miscanthus. However, the last years industrial plantations of power direction appeared the paulownias taken under growing. This arboreal culture is mainly presented by the artificially shown out hybrid of Paulownia Clone in of Vitro 112®. Paulownia it quickly grows tree that for today occupies the first places for speeds of increase bio the masses, the not demanding to the agrotechnics growing proof to illnesses and wreckers is suitable for recultivation of exhausted and useless for the conduct of traditional agriculture of soils. It is characterized a softwood that successfully can be used also in furniture industry, green mass has high maintenance of albumen confronted with leguminous cultures. Bio mass of paulownia is suitable for the production of bioethanol (it is possible to get a to 0.5 ton of ethanol from a 1 ton of dry wood) and fuel preforms and пелет (power value 4211.1 kkal/kg). Next to that, a paulownia is a melliferous culture from honey the productivity 700 kg/hectare of ecological honey, as during growing does not require chemical treatments. A paulownia can be useful to 20–50 years. After each the offcutss, that is conducted at any time year with an interval in 4–8, a tree grows. At the proper supervision in 7 it is possible to get a 240–350 m³ of quality wood from 1 hectare. Taking into account the features of growing and power descriptions bio the masses of paulownia her growing will be rational with the aim of receipt of high-energy bio mass and commercial timber, and also as a melliferous culture.

Dual-Active Bridge Series Resonant Electric Vehicle Charger: A Self-Tuning Method

This paper presents a new self-tuning loop for a bidirectional dual-active bridge (DAB) series resonant converter (SRC). For different loading conditions, the two active bridges can be controlled with a minimum time displacement between them to assure zero voltage switching (ZVS) and minimum circulation current conditions. The tuning loop can instantly reverse the power direction with a fast dynamics. Moreover, the tuning loop is not sensitive to series resonant tank tolerances and deviations, which makes it a robust solution for power tuning of the SRCs. For simplicity, the power is controlled based on the power-frequency control method with a fixed time displacement between the active bridges. The main design criteria of the bidirectional SRC are the time displacement, operating frequency bandwidth, and the minimum and maximum power, which are simply derived and formulated based on the self-tuning loop’s parameters. Based on the parameters of the tuning loop, a simplified power equation and power control method is proposed for DAB-SRCs. The proposed control method is simulated in static and dynamic conditions for different loadings. The analysis and simulation results show the effectiveness of the new tuning method.

Who’s the boss? How and when process power moderates partner regulation of attachment defenses

Emerging theories suggest that interpersonal power may moderate partner regulation of attachment-related defenses. This study tested whether partner negative engagement (attack, blame, and criticism) and process power (direction and control of conflict resolution) interacted to predict avoidant and anxious targets’ behavioral and physiological responses to conflict. We expected the greatest dysregulation when avoidant targets’ autonomy concerns were maximally threatened (i.e., when partners directed conflict using highly negative tactics) and when anxious targets’ abandonment concerns were maximally threatened (i.e., when highly negative partners disengaged from conflict). Results indicated that highly anxious people recovered poorly from conflict regardless of partner negative engagement and process power but showed greatest heart rate reactivity (HRR) to conflict when partners used strong negative engagement but did not direct conflict. Highly avoidant individuals’ HRR did not differ based on partner negative engagement or process power. As expected, however, they recovered the worst from conflict when highly negative partners directed conflict discussions and recovered best when partners directed conflict without using blame or criticism. Findings suggest that the meaning and consequences of process power may differ for avoidant versus anxious targets and underscore the need to integrate multiple conceptualizations of interpersonal power into future research on partner regulation.